This locomotive was constructed by the
Victorian Railways Newport Workshops in 1913 and originally numbered
DD 659, becoming one of the 261 members of the Victorian Railways
DD-class. It was rebuilt from saturated steam DD configuration to
superheated D3
configuration in 1930, becoming D3 684. (For more information about the
Victorian Railways DD-class locomotives, refer to the entry for
D2 604.)

In 1964 locomotive D3 684 was plinthed in a park near to the Seymour railway
station, north of Melbourne, where it remains to this day. (The Seymour Railway Heritage Centre is
nearby.)